TWO GENERA OF CHALCID-FLIES^ — GAHAN 343 



ous; head largely yellowish but with vertex, broad lateral margins of 

 frons, occiput below Deck, and posterior margins of temijles greenish; 



legs brownish 3. longiceps (Brues) 



Basal cell of forewing outlined by cilia but otherwise mostly bare; dorsum 

 of thorax medially dull green, pronotum laterally, broad lateral margins of 

 mesoscutum, declivous portion of axillae, perpendicular sides of scutel- 

 lum, pleura, legs including coxae, and head except vertex and lateral 

 margins of frons orange-yellow 6. nocua, new species 



18. Whole head, except narrowly around the mouth, dull black with a purplish 



tinge ; dorsum of thorax mostly black with a iiurplish tinge 



10. frontalis, new species 



Head mostly pale orange-yellow with more or less of vertex and frons 



greenish or brassy ; dorsum of thorax bronzy or metallic green medially- 19 



19. Dorsum of thorax almost entirely dark bronzy ; vertex and frons brassy 



8. scutata, new species 

 Dorsum of thorax with broad lateral margins orange yellowish, median por- 

 tion of mesoscutum and scutellum metallic green ; head with only a trans- 

 verse area on the vertex greenish 13. abstrusa, new species 



1. ARACHNOPHAGA ALBOLINEA Gahan 

 Arachnophaga aJhoJhica Gahan, Mem. Soc. Cubana Hist. Nat., vol. 8, p. 125, 1934. 



This species is easily distinguished from all other known species 

 of the genus by the hyaline crossband and median stripe on the fore- 

 wing. The types are said to have been reared from puparia of Argy- 

 Toyhylax alhincha Wiedemann that had parasitized the pyralid Lam- 

 frosema indicata Fabricius infesting lima beans in Cuba. 



2. ARACHNOPHAGA HIRTIBASIS, new species 



This species is very similar to longiceps (Brues) but is distinguished 

 immediately by the much longer and more conspicuous hairs on the 

 mesoscutum and by the much darker color. 



Female. — Length 3.6 mm. General color black, very slightly tinged 

 with metallic on vertex, pleura, apex of scutellum, and dorsum of ab- 

 domen ; face below antennae, cheeks mesad of malar groove, posterior 

 orbits narrowly, antennal grooves, and scape testaceous; legs dark 

 brownish varied with testaceous, the anterior pair usually somewhat 

 lighter than the others and the posterior femora slightly tinged with 

 metallic ; antennal pedicel, basal two or three segments of funicle, and 

 the club dark brown to blackish, apical four or five funicular seg- 

 ments yellowish; forewing from base to beginning of curve in sub- 

 marginal vein hyaline, from that point to apex of stigmal vein dark 

 fuscous, and beyond apex of stigmal vein subfuscous; posterior wing 

 hyaline ; abdomen black with dorsum basally tinged with testaceous ; 

 ovipositor sheaths pale yellowish. 



Head, viewed from in front, about as long as broad, slightly nar- 

 rowed below ; cheeks nearly straight ; eyes converging above, sparsely 

 pubescent; frons equal to about one-third the width of head; scrobe 



